203412404031 has 4 divisors (see below), whose sum is σ = 271216538712. Its totient is φ = 135608269352.

The previous prime is 203412404023. The next prime is 203412404101. The reversal of 203412404031 is 130404214302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203412404031 - 2³ = 203412404023 is a prime.

It is a super-2 number, since 2×203412404031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203412403992 and 203412404010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203412404431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33902067336 + ... + 33902067341.

It is an arithmetic number, because the mean of its divisors is an integer number (67804134678).

Almost surely, 2^203412404031 is an apocalyptic number.

203412404031 is a deficient number, since it is larger than the sum of its proper divisors (67804134681).

203412404031 is an equidigital number, since it uses as much as digits as its factorization.

203412404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67804134680.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203412404031 its reverse (130404214302), we get a palindrome (333816618333).

The spelling of 203412404031 in words is "two hundred three billion, four hundred twelve million, four hundred four thousand, thirty-one".